code: def get_targets(self, datasamples):
      return None
  
file_path: mmocr/tests/test_models/test_textdet/test_heads/test_base_head.py
imports: from unittest import TestCase, mock
  from mmocr.models.textdet import BaseTextDetHead
  from mmocr.registry import MODELS
label_desc: Use image node_id 2 for calling the FakeModule obj's underlying member method code with example usage: obj.get_targets(datasamples) and returns: None